INVESTIGATION OF CS BASED PEROVSKITE THIN FILMS FOR THE SOLAR CELL APPLICATIONS

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dc.contributor.authorBatkuldin, Alisher
dc.date.accessioned2022-09-16T08:36:29Z
dc.date.available2022-09-16T08:36:29Z
dc.date.issued2022-06
dc.description.abstractRecently, perovskite has become the most perspective material for the solar energy industry, since there was a rapid increase in efficiency from 3% to 25.6%. This work is based on research of all-inorganic Cs based perovskite thin-film materials and their application in perovskite solar cells (PSCs). The aim of the master’s thesis is to investigate properties of perovskite materials and the influence of incorporating an ionic liquid (IL) with various concentrations on materials and device performance. This work demonstrates an efficient way to produce perovskite thin films with optimized structure and morphology, high degradation resistance and good power conversion efficiency (PCE). ILs have influence on homogenous nucleation, therefore, they can facilitate charge transportation, energy levels adjustment, the crystal growth and the interface modification. Up to now various kinds of ILs were successfully used in the perovskite photovoltaics as charge transport layers, solvent, and additive engineering as well as surface engineering agents to fabricate highly efficient and stable PSCs. Material and device investigations were charactarized to study the positive effect of IL on all-inorganic PSCs. The scanning electron microscopy (SEM), Ultraviolet-Visible (UV-vis) spectrometer, X-ray diffractometer (XRD) and confocal laser scanning microscopy provided the results of the morphology, structures, crystallinity, light absorption and fluorescence intensity of perovskite films which indicate the positive effect of incorporating IL in CsPbI2Br perovskite thin films. The solar simulator and photovoltaic aging system (PAS) characterized photovoltaic parameters of PSCs. The champion device was the IL-doped CsPbI2Br PSC with a PCE of 12.47% (VOC 1.20 V, JSC 14.86 mA/cm-2 and FF 73.48%). After aging test, the optimized device retained 53% of the initial PCE.en_US
dc.identifier.citationBatkuldin, A. (2022). INVESTIGATION OF CS BASED PEROVSKITE THIN FILMS FOR THE SOLAR CELL APPLICATIONS (Unpublished master's thesis). Nazarbayev University, Nur-Sultan, Kazakhstanen_US
dc.identifier.urihttp://nur.nu.edu.kz/handle/123456789/6709
dc.language.isoenen_US
dc.publisherNazarbayev University School of Engineering and Digital Sciencesen_US
dc.rightsAttribution-NonCommercial-ShareAlike 3.0 United States*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/3.0/us/*
dc.subjectResearch Subject Categories::TECHNOLOGYen_US
dc.subjectType of access: Gated Accessen_US
dc.subjectperovskite solar cellsen_US
dc.subjectPSCsen_US
dc.subjectPCEen_US
dc.subjectpower conversion efficiencyen_US
dc.titleINVESTIGATION OF CS BASED PEROVSKITE THIN FILMS FOR THE SOLAR CELL APPLICATIONSen_US
dc.typeMaster's thesisen_US
workflow.import.sourcescience

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